McGraw-Hill OnlineMcGraw-Hill Higher EducationLearning Center
Student Center | Instructor Center | information Center | Home
Biology Case Studies
Bioethics Case Studies
Global Issues Maps
Johnson Explorations
Essential Study Partner
Web Links
BioCourse.com
eLearning
Key Term Flashcards
Testing Your Knowledge
Thinking Scientifically
Art Quizzes
Chapter Quiz
Feedback
Help Center


Lewis Life 4e
Life, 4/e
Ricki Lewis, University of New York at Albany
Mariƫlle Hoefnagels, University of Oklahoma
Douglas Gaffin, University of Oklahoma
Bruce Parker, Utah Valley State College

Protista

Thinking Scientifically

1. Give one example where molecular evidence unites organisms once thought to be dissimilar, and one example where such evidence indicates that organisms once thought to be alike due to their appearance are actually not closely related.

2. What strategies enable cellular slime molds and dinoflagellates to survive a temporarily harsh environment?

3. Who do stramenopiles and green algae differ from plants?

4. A strange event occurred on a South African beach. Half a million spiny rock lobsters, which are a delicacy, became stranded on the sand, and police had to set up roadblocks to prevent people from plucking free dinners from the sea. The lobsters had fled the ocean due to a “red tide” which tinged the water red. What type of protist might have caused the lobster stranding? Are they safe to eat?

5. How is it adaptive for a red alga to have pigments other than chlorophyll?

6. How might Volvox’s colonial lifestyle be adaptive?

Click Here for Answers

 

Additional Questions

1. Protista are small, and some cause disease. This is true of bacteria too. How are protista different from bacteria?

2. Why is it incorrect to blame the Irish potato famine on fungus?

Click Here For The Answers